Gear transmission for automobiles



Feb. 21, 1928. i 1 1,660,162

B.v F. HAYDEN GEAR TRANSMISSON FOR AUTOMOBILES y original Filed 006.18, 1922 5 sheets-shee1 1 3 noauto/t,

Quorum;

Feb. 21, 1928.

B. F. HAYDEN GEAR TRANSMISSION FOR AUTOMOBILES 3 Sheets-Sheet 2 Original Filed Oot.18, 1922 B. F. HAYDN GEAR TRANSMISSION FOR TOMOBILES Feb. y21, 192s.

Original Filed 0012.18, 1922 5 Sheets-Sheet 3 Y Patented Feb. 21, 1928.

'UNI-TED STATES PATENT OFF-ICE.

BIZNJAIVIIN- F.'HAYDEN, 0F ST.A LOUIS,` MISSOURI.

GEAR TRANSMISSION ron AUTOMOBILES.

Application ledfoctober 18,1922, SerialNow595g300. yRenewed.January 11, 1928.

This invention aims to |`provide aix-simple mea-ns whereby the gears inthe transmission of ,an :a-utornobiletmay be .shifted a=utoinatically in .consonance with "the clutchmecha- A`nism. y

`inthe accompanying drawings f Figure 1 shows in vertical'section, adevice constructed in: accordance-'with'the in" vvention, partsbeingbroken away; Figure 2 is atop-plan; Figure 3Ais a rear elevation; iy

Figure-'4 is a section on "theline 4:-4 of `Figure 1.

flnvthe drawings, the `numeral 1 marksvthefioorfbo'ardy of a vehicle'the foot board appearing at 2, and the numeralimarking a portion'of the framework:o'f'thevvehicle. The instrument plate is designatedzbyi'the numeral 4. A gear housing orframe 5 is provided, a bearing G'being mounted-for housing 5 and hasinternal gears v8 andr9 and a socket 10, the gear 9 being ofsmaller diameter than the gear 8, andthe socket 10 being of smaller diameter than the "gearl9. The gear member71s carried by a shaitll ]our- -naled in the vertically slidable bearing 6 and connected by a universal joint 12, to apro- Y a. drive shaft 19 is journaled for rotationy and mounted for endwise sliding movement. rThe-drive shaft l19 carries a pinion 20ct such size as to be received against rotation in the socket 10 ofthe gear member 7 .I 'When the'drive shaft 19 ismove'd longitudinally, the `pinion 42O ron thedrive sha-ftmay be 'brought into engagement l with 'the internal gears 8 and 9 of the member 7,-1a't thewill 5o the plunger.

reciprocation on the rear endof the housingl 5. A gear 1nember'7 is located within the nected as usual to the differential (net-shown) of an operator,Vr when the bearing Gand thelgear Imember 7 aremoved vertically. A :clutch 22 1s carried by the sleeve 21 -and'is r advanced by a spring23 into werkingposition, the clutch being Vof any desired sort.

.A slide .or` operatingvmember 24 ismounted :for reciprocation .in the -casing 5 and is 'connectedto theshaft 19 in such a way as to impart longitudinal movement thereto atthe willof an operator. ismounted to rock on the frame 3-and has ai crank arm 26 engaged with theslide'24..

A horizontal shaft 25 The shaft 25 is supplied with a crankarm l27 pivoted to amplunger 28 slidable inV a bracket 29 carried by the frame '3Ua compression spring f3() abutting against the plunger and against the bracket to retract The bracket 29 has a head 31 provided with internal seats 32, 33,34 and 35. Atitsforward end, the plunger 28'carries a-transverse yguide '36 having an elongated slot '37. Anfaaigular latch 38 is`pivoted adjacent to its vupper Vend upon the ar1n18 ofthe bell'crank lever 16. "The lower end of the latch 38 carries an angular projection39 slidable in theslot 37 of theA guide 36of the plunger 28 and adapted to cooperate withthe seats 32,33, 34 `and 35 ofthe head 31 lon the; bracket 29. A lever 40 is Vmounted to yswing on thepivot elementv 15 and has an upstanding end 41. 42-ispivoted tothe uppereXti-emity of the A I pedal part 41 of the clutch lever 40 and is adapted to coact with the upper end` of the latch 38.

Theclutch lever '40`has aside cam 43 adapt edito cooperate with an-armf44 on a shaft 45 'mounted' to rock on any accessible-part 46 of the vehicle'frame, the shaft carrying a fork 47 coacting with the clutch 22 to retract the clutch against the action of the spring 23.

'A vertical shaft 48 isjournaled on the vehiclef frame and on theinstrument plate 4,

as indicated'at 49, the shaft having a handle 50 Vadapted to coact with a latch 51 on the instrument plate. The shaft 48 has an upper armV 52 interengaged with a-shaft 53to impart longitudinal movement thereto, Athe shaft being mounted for rotation andfor rel ciprocation in v'the housing 5. gear 54'is secured to thev shaft 53 andis dis- A `reversing posed adjacent to the forward wall of fthe housing 5. The shaft 48 has a lower arm 55 adapted to cooperate with the lug 150 on the forward portion of the bell crank lever 16. The numeral 56 in Figure 3 marks the brake pedal, the same being carried on the pivot element 15, if desired, and having no particular function in the device forming the subject matter of this application.

The operator places his foot on the pedal 42 and swings the clutch lever 40 downwardly, the cam 43 coacting with the arm 44 to rock the shaft 45, the fork 47 r-etracting the clutch 22 against the action of the spring 23. When the clutch lever 40 is carried downwardly, the pedal 42, coacting with the end 18 of the bell crank lever 16, swings the forward end of the bell crank lever 16 downwardly, the link 17 raising the vertically slidable bearing v6 on the housing 5 so that the socket 10 is positioned to receive the pinion 20 on the shaft 19. The operator tilts the pedal 42 on the end 41 of the lever 40, the pedal tilting the latch 38, to disengage the projection 39 from any one of the seats 32, 33 or 34, in which it happens to be lodged. The operator then can tilt the pedal 42 in an opposite direction to ease off on the latch 38, and to permit the latch, at its lower edge,

to'move rearwardly, with the plunger 28, the

plunger 28 moving rearwardly responsive to the action'of the spring 30, the arm 27 rocking the shaft 25, and the arm 26 imparting motion to the slide 24, the slide carrying the pinion 20 rearwardly into engagement with t-he socket 10 of the gear member 7, the gear mechanism then being coupled up in high.V

The projection 39 on the latch 38 is engaged with the seat 35 of the head 31 on the bracket 29 and the bell crank lever16 thus is held against movement. When pressure on ythe pedal 42 is relieved, the clutch lever 40 moves upwardly, the clutch being thrown in. By engaging the projection 39 in the seats 34 and 33, and by engaging the pinion 2() with the internalgear 9 or with the internal gear 8, they gear mechanism may be held either in second or in low.

By means Lof the handle 50, the operator i may rotate the shaft 48 until the arm 55 on theshaft cooperates with the lug 150 on the` lever 16 to prevent the right hand end of the lever (Fig. 1), the bearing 6 and the gear i' member 7 from moving downwardly, when the clutchlever 40 is moved upwardly, as hereinafter described. The operator then tilts the pedal 42 and the latch 38, the projection 39 being disengaged from the seat ,35, the clutch lever 40 moving upwardly, the

clutch 22 being thrown out, and the parts 28-27-25-264-24 moving the shaft 19 and the pinion 20 to the left until the pinion 2,0 is in vertical alinement with the gear 8. The shaft 48 is rocked by the handle 50 until the arm 55 on the shaft is disengaged from the lug 150 on the lever 16. This sets the lever 16 free, and the bearing 6 slides downwardly, bringing the gear 8 into mesh with the pinion 10, which, it is to be recalled, is invertical alineinent with the gear 8. The shaft 48 .is rocked and the arm 52 on the shaft slides the shaft 53 to the right in Figure 1, bringing the reversing pinion 54 into mesh with the gear 8 andthe pinion 20. The lever 40 now may be swung down far enough to throw in the VclutchY 22, before the pedal 42 engages the arm V18 of the lever 16, the gear elements 54, 20 and 8 remain interengaged,

and reverse rotation being imparted to the gear member 7, and tothe shafts 11 and 14. f

movement transversely of its'aXis; a pinion;`

means for mounting the piniony on the housing for movement longitudinally of the aXls of the gear, into and out of engagenfient` with the gear; a lever fulcrumed for swing-V ing movement; means for connecting the lever with the gear to move the gear trans? versely of its axis; a latch mounted to swingon the lever; iixedmeans wherewith the latch is adapted to engage; a clutch; a lever operating the clutch and constituting means for Vactuating the first specified-lever;

and a pedal on the clutch lever, the pedalconstituting means for operating-the latch;

Aand means operated by the latch for moving` the pinion with respect tofthe gear.-

2. In a device of the class described, a first lever mounted for swinging movement; a latch mounted to swing on the first lever;

fixed means wherewith the latch is Vadapted i to engage; a clutch; a clutch lever, the clutch lever constituting means for operating the first lever; a vpedal tiltablel on the clutch lever and coacting withthe latch; relatively movable gear elements; means Vforconnecting one of said gear elements with the rst lever; and means for connecting the other of the gear elements with the latch.

3. In a device of the class described, a first lever'mounted for swinging movement;

a latch mounted to swing on the first lever;

fixed means wherewith the latch engages; a clutch lever; a pedal tiltable on the clutch lever and vconstituting means for actuating the-latch; a plunger mounted for reciprocation; means for connecting the plunger slidably with the latch; relatively movablergear elements; means for connecting one `of Ysaid gear elements with the first lever; and means for connecting the other of said gear elements with the plunger. y v I 4. In a device of the class described, a

first lever 'mounted for swinging movement; v

fixed means wherewith the latch is adapted to engage; a clutch; a clutch lever; a pedal a latch vmounted to swing on the firstlever;

constituting means for actuating the lateh; relatively movable gear members; means Jfor connecting the gear members operatively with the rst lever and With the latch; a reversing pinion shiftable into and'out of vengagement With the gear members; and

mechanism for shifting the reversing pin- Y lever.

In testimony that I claim the foregoing Y as my own, I have hereto aixed my signature.

BENJAMIN F. HAYDEN. 

